It is generally recommended to paint polystyrene cornice moldings before installing them. This allows for easier and more thorough coverage of the molding, as well as the ability to paint the entire surface without worrying about getting paint on the ceiling or walls. Additionally, painting the moldings before installation can help to seal the material and protect it from damage or discoloration over time. However, if the moldings are already installed, it is still possible to paint them in place with careful preparation and masking of surrounding surfaces. **

Playing against a grandmaster in chess can be an incredibly challenging and intimidating experience. Grandmasters are among the best players in the world, with a deep understanding of the game and exceptional strategic skills. It is important to approach the game with humility and a willingness to learn, as playing against a grandmaster can provide valuable insights and opportunities for improvement. While the odds of winning may be slim, the experience of facing off against a grandmaster can be a valuable learning opportunity and a memorable experience for any chess enthusiast. **

ATX, Midi Tower, and Big Tower are all types of computer cases used to house the components of a computer. ATX is a standard size for motherboards and cases, and ATX cases are designed to accommodate ATX motherboards. Midi Tower and Big Tower are different sizes of computer cases, with Midi Tower being smaller and Big Tower being larger. The size of the case determines how many components can be housed inside, as well as the cooling and expansion options available. **

A tower is typically considered a tower when it is significantly taller than its surroundings, standing at a height that allows it to be easily visible from a distance. While there is no specific height requirement for a structure to be classified as a tower, it is generally understood to be a tall, freestanding structure that serves a specific purpose, such as communication, observation, or defense. The height at which a structure is considered a tower can vary depending on the context and location, but it is usually several stories tall. **

A tower is typically considered a tower when it is taller than it is wide at its base. This means that the height of the structure is significantly greater than its width, giving it a tall and slender appearance. While there is no specific height requirement for a structure to be classified as a tower, it is generally understood that a tower is a tall, freestanding structure that is used for various purposes such as communication, observation, or as a landmark. **

Becoming a chess grandmaster is a highly challenging and competitive endeavor that requires exceptional skill, dedication, and strategic thinking. While it is theoretically possible for anyone to become a grandmaster with enough practice and commitment, the reality is that only a very small percentage of chess players ever achieve this prestigious title. To become a grandmaster, one must typically start playing chess at a young age, receive expert coaching, participate in numerous tournaments, and consistently perform at a high level against top competition. It is important to set realistic goals and enjoy the journey of improving your chess skills, regardless of whether or not you ultimately reach the grandmaster level. **

To cut cornice moldings at a mitered angle with an odd angle, you will need to use a miter saw with the ability to adjust to the specific angle needed. First, measure and mark the angle on the molding, then set the miter saw to the corresponding angle. Place the molding against the saw fence and make the cut. It's important to double-check the angle and make any necessary adjustments before cutting to ensure a precise fit. **

To checkmate in chess, you need to put your opponent's king in a position where it is under attack and cannot escape capture. This means the king is in a position to be captured on the next move and there are no other legal moves available to get out of check. Checkmate ends the game immediately, and the player who achieves checkmate is declared the winner. It requires strategic planning, positioning your pieces effectively, and anticipating your opponent's moves to successfully checkmate in chess. **